With the original tubes after the break in period they sounded good ,
If you want to improve your sound try replacing them with NEW Tung-Sol gold pin cryo'd or not .
I replaced the 12AU7A Gold Lion with a NOS Raytheon from the 60's ,
wow ( now that it is broken in ) what clarity .
The Gold Lion has more warmth if that is what you are looking for .
I don't use the mute , wish it was a stereo/mono switch .
Congratulations and Have Fun Rolling .
If you want to improve your sound try replacing them with NEW Tung-Sol gold pin cryo'd or not .
I replaced the 12AU7A Gold Lion with a NOS Raytheon from the 60's ,
wow ( now that it is broken in ) what clarity .
The Gold Lion has more warmth if that is what you are looking for .
I don't use the mute , wish it was a stereo/mono switch .
Congratulations and Have Fun Rolling .